
Dear All,

I am trying to use a summarization method alone to condense my affy
genechip expression data. The RNA in this experiment was pretty bad, so
I filtered a few poor performing probes in each probeset. Now I got the
PM intensity matrix with various probes in each probeset, and tried to
summarize the probeset.  I checked the summarization methods in affy
package, but couldn't find a proper one. I am still confused if there
was a summarization method that can be used to condense this filtered
dataset. Anyone has this experience?

Best,


Zhi Zhang
Lead Selection
Applied Genomics

Syngenta Biotechnology, Inc.
3054 Cornwallis Road
Research Triangle Park, NC 27709-2257

Tel: (919)765-5052
Fax: (919)541-8585



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